GB1385277A - Method of placing and firing explosive charges in marine seismic prospecting - Google Patents

Method of placing and firing explosive charges in marine seismic prospecting

Info

Publication number
GB1385277A
GB1385277A GB5350072A GB5350072A GB1385277A GB 1385277 A GB1385277 A GB 1385277A GB 5350072 A GB5350072 A GB 5350072A GB 5350072 A GB5350072 A GB 5350072A GB 1385277 A GB1385277 A GB 1385277A
Authority
GB
United Kingdom
Prior art keywords
conduit
charge
detonator
seismic prospecting
marine seismic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5350072A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB5350072A priority Critical patent/GB1385277A/en
Publication of GB1385277A publication Critical patent/GB1385277A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/38Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
    • G01V1/393Means for loading explosive underwater charges, e.g. combined with ignition devices

Abstract

1385277 Seismic charges IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Oct 1973 [20 Nov 1972] 53500/72 Heading F3A [Also in Division H4] An explosive charge 19 primed with a delay electric detonator is projected to its required explosion depth for marine seismic prospecting by establishing a downward water stream through conduit 10 (Fig. 1) and along a path 35 extending from the submerged conduit end through the marine water mass, and inserting the charge into the water stream. As shown in Fig. 3 the charge comprises TNT/ammonium nitrate powder in a sealed container 23 with a plastic nose cone 26 and a pocket 28 accommodating the detonator. The detonator wires are connected to brush contacts 33 which engage electrodes 21, 22 (Fig. 2) in the conduit for initiating the charge. A rotary turret 17 (Fig. 1) is used for loading charges in succession into conduit 10. A foil 34 shorts the contacts 33 before loading.
GB5350072A 1972-11-20 1972-11-20 Method of placing and firing explosive charges in marine seismic prospecting Expired GB1385277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5350072A GB1385277A (en) 1972-11-20 1972-11-20 Method of placing and firing explosive charges in marine seismic prospecting

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB5350072A GB1385277A (en) 1972-11-20 1972-11-20 Method of placing and firing explosive charges in marine seismic prospecting
AU61207/73A AU475399B2 (en) 1972-11-20 1973-10-10 Method of placing explosive charges in marine seismic prospecting
JP48120860A JPS5046501A (en) 1972-11-20 1973-10-29
CA185,517A CA996244A (en) 1972-11-20 1973-11-09 Method of placing explosive charges in marine seismic prospecting
FR7341094A FR2207286B1 (en) 1972-11-20 1973-11-19

Publications (1)

Publication Number Publication Date
GB1385277A true GB1385277A (en) 1975-02-26

Family

ID=10468033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5350072A Expired GB1385277A (en) 1972-11-20 1972-11-20 Method of placing and firing explosive charges in marine seismic prospecting

Country Status (5)

Country Link
JP (1) JPS5046501A (en)
AU (1) AU475399B2 (en)
CA (1) CA996244A (en)
FR (1) FR2207286B1 (en)
GB (1) GB1385277A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1175588A1 (en) * 1999-04-07 2002-01-30 Metal Storm Limited Projectile launching apparatus
US6860187B2 (en) 1999-04-07 2005-03-01 Metal Storm Limited Projectile launching apparatus and methods for fire fighting
WO2010018401A1 (en) * 2008-08-15 2010-02-18 Verderg Limited Installation tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL32970C (en) * 1931-07-11
US3509959A (en) * 1968-04-29 1970-05-05 Hercules Inc Underwater seismic exploration system and firing device and charge therefor
FR2130734A5 (en) * 1969-10-10 1972-11-10 Inst Francais Du Petrole
US3578101A (en) * 1969-11-04 1971-05-11 Hercules Inc Charge loader device, system, and method for underwater seismic exploration

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1175588A1 (en) * 1999-04-07 2002-01-30 Metal Storm Limited Projectile launching apparatus
EP1175588A4 (en) * 1999-04-07 2003-06-18 Metal Storm Ltd Projectile launching apparatus
US6701818B1 (en) 1999-04-07 2004-03-09 Metal Storm Limited Method for seismic exploration of a remote site
US6860187B2 (en) 1999-04-07 2005-03-01 Metal Storm Limited Projectile launching apparatus and methods for fire fighting
WO2010018401A1 (en) * 2008-08-15 2010-02-18 Verderg Limited Installation tube

Also Published As

Publication number Publication date
CA996244A1 (en)
CA996244A (en) 1976-08-31
AU6120773A (en) 1975-04-10
JPS5046501A (en) 1975-04-25
AU475399B2 (en) 1976-08-19
FR2207286A1 (en) 1974-06-14
FR2207286B1 (en) 1977-06-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee